Adds a new field to this Sort specification. @param field the additional field to sort on @param ascend indicates if the field should be sorted in asc

Get the data value at the given field as an Object. @param field the data field to retrieve @return the data value as an Object. The concrete type of

Get the current y-coordinate of this item. @return the current y-coordinate @see #Y

Get the current x-coordinate of this item. @return the current x-coordinate @see #X

Return the parameter expression at the given index. @param idx the parameter index @return the parameter value Expression at the given index

This has been made public to support more efficient iteration. <strong>DO NOT MODIFY this array upon getting it</strong>. Otherwise you risk wreaking

Get the clip's width @return the clip width

Get the size of this index, the number of data value / row pairs included. @return the size of the index

Get the clip's height @return the clip height

Set the label text @param text the label text to set

Print <em>unescaped</em> text into the XML file. To print escaped text, use the {@link #content(String)} method instead. @param s the text to print. T

Add a function to the function table. It will then become available for use with compiled statements of the prefuse expression language. @param name t

Compares this schema with another one for equality.

Get the Tuple with the maximum data field value. @param tuples an iterator over tuples @param field the column / data field name @return the Tuple wit

Get the data value at the given field as a <code>double</code>. @param field the data field to retrieve @see #canGetDouble(String)

Get the column at the given column number. @param col the column number @return the Column instance

Get an iterator over a sorted range of rows. @param lo the minimum data value @param hi the maximum data value @param type the iteration type, one of

Add a data processing Action to this Visualization. The Action will be updated to use this Visualization in its data processing. @param name the name

Evaluate the Expression on the given input Tuple. @param t the input Tuple @return the Expression return value, as a double

Print <em>unescaped</em> text into the XML file, followed by a newline. To print escaped text, use the {@link #content(String)} method instead. @param

Returns the row index for this Tuple's backing Table, if it exists. @return the backing row index, or -1 if there is no backing table or if this Tuple

Get the first row found with the given data value. @param x the data value @return the first row matching the data value

Set this item's visibility. @param value true to make the item visible, false otherwise. @see #VISIBLE

Get the current value ssociated with the slider position. @return the current value

Get the name of this function. @return the function name

Add a data field / column to this TupleSet's members. @param name the name of the data field @param type the type of the data field

Get the Tuple with the minimum data field value. @param tuples an iterator over tuples @param field the column / data field name @return the Tuple wit

Sets the enabled status of this control. @param enabled true to enable the control, false to disable it

Clear this TupleSet, removing all contained Tuples.

Get the primary data group of which this VisualItem is a member. Returns the name of the group of this item's backing VisualTable. @return the item's

Get the minimum x-coordinate. @return the minimum x-coordinate

Return an iterator over the tuples in this tuple set. @return an iterator over this set's tuples

Adds a ControlListener to receive all input events on VisualItems. @param cl the listener to add.

Evaluate the Expression on the given input Tuple. @param t the input Tuple @return the Expression return value, as an Object

Get the minimum y-coordinate. @return the minimum y-coordinate

Get the backing Visualization of which this VisualItem is a part. @return the backing Visualization

Set the value of a given data field. @param field the data field to set @param value the value for the field. If the concrete type of this Object is n

Evaluate the Expression on the given input Tuple. @param t the input Tuple @return the Expression return value, as an int

Get the color code for the given red, green, and blue values. @param r the red color component (in the range 0-255) @param g the green color component

Get the maximum y-coordinate. @return the maximum y-coordinate

Get the backing node table. @return the table of node values

An internal-only method that returns the current number of parameters collected.

Get the maximum x-coordinate. @return the maximum x-coordinate

Get the current size value of the item. Size values are typically used to scale an item, either in one-dimension (e.g., a bar chart length) or two-dim

Get the stack trace of the given Throwable as a String. @param t the Throwable @return the stack trace of the Throwable

Set the data value at the specified row @param val the value to set @param row the row at which to set the value

Sets the foreground and background color for a component and all components contained within it. @param c the parent component of the component subtre

Internal validity check. Throw an exception if the tuple is not valid.

Get the row value for accessing an underlying Column instance, corresponding to the given table cell. For basic tables this just returns the input row

Get the data value at the given field as an <code>int</code>. @param field the data field to retrieve @see #canGetInt(String)

static version of indexOf, to allow repeated calls without needing to re-acquire array each time. @param o element to search for @param elements the a

Issue a repaint request, causing all displays associated with this visualization to be repainted.

Set the current font for the item. The font is used as the default typeface for drawing text for this item. @param font the current font value @see #F

Set the current x-coordinate of this item. @param x the new current x-coordinate @see #X

Set the current y-coordinate of this item. @param y the new current y-coordinate @see #Y

@see java.util.Iterator#hasNext()

@see java.util.Iterator#next()

@see java.lang.Object#toString()

Add a column to this schema. @param name the column name @param type the column type (as a Class instance) @throws IllegalArgumentException is either

Get the bounding box for this VisualItem. If necessary, the bounds will be validated before returning the bounding box. @return the item's bounding bo

Set the current size value of the item. Size values are typically used to scale an item, either in one-dimension (e.g., a bar chart length) or two-dim

初始化数据中心，单例模式 @return

Indicates if values from a given Schema can be safely assigned to data using this Schema. The input Schema must be less than or equal in length to thi

Get the column number for a given data field name. @param field the name of the column to lookup @return the column number of the column, or -1 if the

Returns a spanning tree over this tree. If no spanning tree has been constructed at an alternative root, this method simply returns a pointer to this

@see prefuse.util.collections.LiteralIterator#nextInt()

Set the data value of the given field with an <code>int</code>. @param field the data field to set @param val the value to set @see #canSetInt(String)

Get the color code for the given grayscale value. @param v the grayscale value (in the range 0-255, 0 is black and 255 is white) @return the integer c

Return a TableIterator over the rows of this table. @return a TableIterator over this table

Get the data value at the given field as a <code>boolean</code>. @param field the data field to retrieve @see #canGetBoolean(String)

Pads or truncates a string as necessary to fit within the column length.

Set the data value of the given field with a <code>double</code>. @param field the data field to set @param val the value to set @see #canSetDouble(St

Returns <tt>true</tt> if this list contains the specified element. More formally, returns <tt>true</tt> if and only if this list contains at least one

Return an iterator over the tuples in this manager. @param rows an iterator over table rows @return an iterator over the tuples indicated by the input

Throw an exception when needed parameters are missing.

For a given interpolated field name, get the name of the end field. @param field the data field @return the ending field for the interpolated column

Get a Font instance with the given font family name and size. A plain font style is assumed. @param name the font name. Any font installed on your sys

For a given interpolated field name, get the name of the start field. @param field the data field @return the starting field for the interpolated colu

Get the data value at the given field as a <code>String</code>. @param field the data field to retrieve @see #canGetString(String)

Indicates if this Control is currently enabled. @return true if the control is enabled, false if disabled

Get an iterator over all visible items. @return an iterator over all visible items.

Get the tree depth of this node. @return the tree depth of this node. The root's tree depth is zero, and each level of the tree is one depth level gre

Parse an expression. @param expr the expression text to parse @param throwsException true if this method should throw an exception if an error occurs

Returns the most specific superclass for the values in the column @return the Class of the column's data values

Get the backing edge table. @return the table of edge values

Indicates if this item is a member of a given group. This includes both the item's primary group (that of it's backing VisualTable) and any number of

Get the color code for the given red, green, blue, and alpha values. @param r the red color component (in the range 0-255) @param g the green color co